JP7527439B2 - Heat generating module, atomization assembly, and electronic atomization device - Google Patents

Description

This application relates to the technical field of atomization, and in particular to a heat generating module, an atomization assembly, and an electronic atomization device.

Aerosols are colloidal dispersions formed by dispersing and suspending small particles of solid or liquid in a gaseous medium. Aerosols can be absorbed by the human body via the respiratory system, providing users with a new alternative means of absorption. An atomizing device refers to a device that forms a stored atomizable medium into an aerosol by heating, ultrasound, etc. Atomizable media include liquids containing nicotine, medicinal drugs, skim milk, etc., and by atomizing these media, an inhalable aerosol can be provided to the user in place of conventional product forms and means of absorption.

Conventional electronic atomization devices mainly use a resistive heating method to heat the aerosol-generating substrate, and if an electromagnetic atomization method is used instead of a resistive heating method, the original atomization device structure cannot meet the requirements for electromagnetic atomization.

In view of this, there is a need to provide a heat generating module, an atomization assembly, and an electronic atomization device that can achieve the technical effect of meeting the requirements of electromagnetic atomization, in order to address the problem that the structure of conventional electronic atomization devices cannot be applied to electromagnetic atomization applications.

In one aspect of the present application, there is provided a heat generating module, comprising:
a heat generating case in which a case receiving chamber is formed;
a sheet-shaped heating element that is accommodated in the case accommodation chamber and divides the case accommodation chamber into a liquid guide chamber and a gas flow passage, the liquid guide chamber and the gas flow passage being respectively disposed on both sides of the sheet-shaped heating element in a thickness direction;
A heat generating module is provided, the heat generating module comprising: a liquid guide member having one end accommodated in the liquid guide chamber and in contact with the sheet-shaped heat generating element, and having the other end protruding from the liquid guide chamber.

In one embodiment, the heating case includes a heating element base and a heating element fixing lid, the heating element fixing lid is disposed on the side of the liquid guide member away from the sheet-shaped heating element and is coupled to the heating element base, the gas flow passage is formed between the heating element base and the sheet-shaped heating element, and the liquid guide chamber is formed between the heating element fixing lid and the sheet-shaped heating element.

In one embodiment, a flow path guide groove is provided on the side of the heating element fixing lid facing the liquid guide chamber.

In one embodiment, the sheet-shaped heating element is provided with a heating element exhaust hole that connects the liquid guide chamber to the gas flow passage.

In another aspect of the present application, there is provided an atomization assembly including the heat generating module described above.

In one embodiment, the atomizing assembly includes a reservoir housing defining an exhaust passage and a reservoir chamber surrounding the exhaust passage;
The heat generating module is connected to one end of the storage tank housing, the exhaust passage is connected to the gas flow passage, the liquid guide chamber is connected to the storage chamber, and one end of the liquid guide member protruding from the liquid guide chamber is bent and extended to enter the storage chamber.

In one embodiment, the atomizing assembly further comprises a gas passage seal member coupled between the reservoir tank housing and the heat generating module and communicating the exhaust passage with the gas flow passage of the heat generating module.

In one embodiment, the atomizing assembly further comprises a reservoir tank bottom lid, the reservoir tank bottom lid is coupled to one end of the reservoir tank housing, and the heat generating module is housed within the reservoir tank bottom lid.

In one embodiment, the atomizing assembly further comprises a reservoir tank seal member disposed between the reservoir tank bottom cover and the reservoir tank housing to seal the reservoir chamber.

In one embodiment, a case air intake hole is provided at one end of the heat generating case that is remote from the liquid storage chamber, and a bottom cover air intake hole that communicates with the case air intake hole is provided at one end of the liquid storage tank bottom cover that is remote from the liquid storage chamber.

In one embodiment, the atomizing assembly further comprises an induction coil, the induction coil circumferentially surrounding the exterior of the bottom lid of the liquid storage tank.

In another aspect of the present application, there is provided an electronic atomization device including the above-described atomization assembly, the electronic atomization device further including a power supply assembly electrically connected to the atomization assembly for supplying electrical energy to the atomization assembly.

In the above heat generating module, the aerosol-generating substrate is heated and atomized by a thin sheet-like heating element, so the temperature rise rate is faster than with a tubular heating element, and the effect of high-speed atomization can be achieved. In addition, the liquid guide member realizes a liquid-filling method from the top, and there is no need to provide a separate liquid-filling passage on the side of the sheet-like heating element to allow the aerosol-generating substrate to enter the liquid guide member, so the distance between the sheet-like heating element and the external coil can be reduced to further improve the atomization speed.

FIG. 1 is a schematic diagram of an atomization assembly according to one embodiment of the present application. 2 is a cross-sectional view of the atomizing assembly shown in FIG. 1 taken along a second direction. 2 is a cross-sectional view of the atomizing assembly shown in FIG. 1 taken along a first direction; FIG. 2 is an exploded schematic view of a partial structure of the atomization assembly shown in FIG. 1 . 2 is a schematic structural diagram of a heating element base according to an embodiment of the present application; 1 is an assembly diagram of a heating element base and a sheet-shaped heating element according to an embodiment of the present application. 1 is a schematic structural diagram of a heat generating module according to an embodiment of the present application; 2 is a schematic structural diagram of a heating element fixing cover according to an embodiment of the present application. 2 is an assembly diagram of a heat generating module and a gas flow passage seal member according to an embodiment of the present application;

In order to make the above objects, features, and advantages of the present application more clearly understandable, the following describes in detail specific embodiments of the present application with reference to the drawings. In order to fully understand the present application, many specific details are set forth in the following description. However, the present application can be embodied in many other ways than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, and therefore the present application is not limited to the specific examples disclosed below.

In the description of this application, it should be understood that the orientations or positional relationships indicated by the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "up," "down," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are shown based on the drawings and are intended only to simplify the description and to facilitate the description of this application, and do not imply or suggest that the devices or elements referred to have a particular orientation or must be constructed or operated in a particular orientation, and should not be construed as limiting this application.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or suggesting the relative importance or number of the indicated technical features. Thus, a feature to which "first" and "second" are qualified may explicitly or implicitly include at least one of the feature. In the present description, "plurality" means at least two, e.g., two, three, etc., unless expressly defined otherwise.

In this application, unless otherwise clearly specified or limited, the terms "attached," "connected," "connected," "fixed," and the like should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, or an integral connection. They may also refer to a mechanical connection or an electrical connection. Furthermore, unless otherwise clearly limited, they may refer to a direct connection, an indirect connection via an intermediate medium, an internal connection between two elements, or a mutual interaction between two elements. Those skilled in the art will be able to understand the specific meanings of the above terms in this application according to the specific circumstances.

In this application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first feature and the second feature are in direct contact with each other, or that the first feature and the second feature are in indirect contact with each other via an intermediate medium. Furthermore, a first feature being "above," "above," and "on the upper surface" of a second feature may simply indicate that the first feature is directly above or diagonally above the second feature, or that the horizontal height of the first feature is greater than that of the second feature. A first feature being "below," "below," and "on the lower surface" of a second feature may simply indicate that the first feature is directly below or diagonally below the second feature, or that the horizontal height of the first feature is smaller than that of the second feature.

For illustrative purposes, when an element is referred to as being "fixed" or "mounted" on another element, it may be directly disposed on the other element or there may be intervening elements. When an element is referred to as being "connected" to another element, it may be directly connected to the other element or there may be intervening elements. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions are for illustrative purposes only and do not represent the only embodiment.

As shown in FIG. 1, one embodiment of the present application provides an electronic atomization device including an atomization assembly 100 and a power supply assembly (not shown) coupled to one end of the atomization assembly 100. The power supply assembly is coupled to one end of the atomization assembly 100 and is electrically connected to the atomization assembly 100 to supply electrical energy to the atomization assembly 100. In this manner, the atomization assembly 100 heats an aerosol-generating substrate by the action of electrical energy from the power supply assembly, thereby generating an aerosol that is inhaled by a user. Note that the structure of the power supply assembly is not a main inventive point of the present application, and will not be described in detail here.

As shown in Figures 2 to 4, the atomizing assembly 100 includes a liquid storage tank housing 10, a liquid storage tank bottom lid 20, a liquid storage tank seal member 30, and a heat generating module 40. The liquid storage tank housing 10 and the liquid storage tank bottom lid 20 are sealed and connected by the liquid storage tank seal member 30 to house the heat generating module 40.

Specifically, the liquid storage tank housing 10 has a case-like structure and includes a central tube 12 and a housing side wall 14. The central tube 12 has a generally hollow cylindrical structure, the interior of which communicates with the outside air to form an exhaust passage 121. The housing side wall 14 extends obliquely from the top of the central tube 12 to the bottom of the central tube 12 and circumferentially surrounds the central tube 12, thereby forming a liquid storage chamber 16 that circumferentially surrounds the exhaust passage 121 for storing an aerosol-generating substrate.

In this application, the axial direction is defined as the extension direction of the central tube 12 (i.e., the Z direction in FIG. 1), the width direction of the liquid storage tank housing 10 is defined as the first direction (i.e., the X direction in FIG. 1), and the thickness direction of the liquid storage tank housing 10 is defined as the second direction (i.e., the Y direction in FIG. 1). Here, two of the axial direction, the first direction, and the second direction are mutually perpendicular.

The liquid storage tank bottom lid 20 has a case-like structure with one open end, and includes a bottom lid bottom wall and a bottom lid side wall formed by extending in the same direction from the edge of the bottom lid bottom wall, and the bottom lid side wall surrounds the bottom lid bottom wall in the circumferential direction to form a bottom lid receiving chamber 21 with one open end. The open end of the liquid storage tank bottom lid 20 away from the bottom lid bottom wall is inserted into one end close to the bottom of the central tube 12 of the liquid storage tank housing 10, while the closed end where the bottom lid bottom wall of the liquid storage tank bottom lid 20 is provided protrudes from the liquid storage tank housing 10. In a preferred embodiment, the liquid storage tank bottom lid 20 has a large end 20a and a small end 20b, the large end 20a has an outer diameter larger than the small end 20b, and is connected to the liquid storage tank housing 10, and the small end 20b protrudes from the liquid storage tank housing 10.

The storage tank seal member 30 has an annular structure, is fitted into the open end of the bottom lid side wall of the storage tank bottom lid 20, and is disposed between the storage tank bottom lid 20 and the storage tank housing 10, and is used to seal the storage chamber 16 to prevent the aerosol-generating substrate in the storage chamber 16 from leaking to the storage tank bottom lid 20.

The heat generating module 40 is accommodated in the bottom cover accommodating chamber 21 of the liquid storage tank bottom cover 20, and includes a heat generating case 41, a sheet-shaped heating element 43, and a liquid guide member 45. The heat generating case 41 is formed with a case accommodating chamber, and the sheet-shaped heating element 43 is accommodated in the case accommodating chamber to divide the case accommodating chamber into a liquid guide chamber and a gas flow passage 47. One end of the liquid guide member 45 is accommodated in the liquid guide chamber and contacts the sheet-shaped heating element 43, and the other end protrudes from the liquid guide chamber and extends into the liquid storage chamber 16. The gas flow passage 47 is connected to the liquid storage chamber 16 in the liquid storage tank housing 10.

In this way, the liquid guide member 45 can guide the aerosol-generating substrate in the liquid storage chamber 16 to the sheet-shaped heating element 43, and the sheet-shaped heating element 43 can heat the aerosol-generating substrate to generate an aerosol. The aerosol can flow out through the gas flow passage 47. In the heat generating module 40, the thin sheet-shaped heating element 43 heats and atomizes the aerosol-generating substrate, so the temperature rise rate is faster than with a tubular heating element, and the effect of high-speed atomization can be achieved. In addition, the liquid guide member 45 realizes a liquid-filling method from the top, and there is no need to provide a separate liquid-filling passage on the side of the sheet-shaped heating element 43 to allow the aerosol-generating substrate to enter the liquid guide member 45, so the distance between the sheet-shaped heating element 43 and the external coil can be reduced to further improve the atomization speed.

The heating case 41 comprises a heating element base 412 and a heating element fixing lid 414, which engage with each other in the second direction to form a case receiving chamber.

5, specifically, the heating element base 412 includes a base bottom wall 4121, a base top wall 4122, a base rear wall, a base front wall 4123, a base left side wall 4124, and a base right side wall 4125. The base bottom wall 4121 and the base top wall 4122 are spaced apart in the axial direction, and the base bottom wall 4121 is disposed at one end of the heating element base 412 that is away from the liquid storage chamber 16. Also, the width of the base top wall 4122 in the second direction is smaller than the width of the base bottom wall 4121 in the second direction, thereby providing an extension space for the liquid guide member 45. The pedestal rear wall and the pedestal front wall 4123 are spaced apart in the second direction, the pedestal rear wall is connected to one side edges in the second direction of the pedestal bottom wall 4121 and the pedestal top wall 4122, and the pedestal front wall 4123 is connected to a center portion in the second direction of the pedestal bottom wall 4121 and the other side edge in the second direction of the pedestal top wall 4122. The pedestal left side wall 4124 and the pedestal right side wall 4125 are spaced apart in the first direction and connected between the pedestal bottom wall 4121 and the pedestal top wall 4122, extending from the pedestal rear wall to the other side of the pedestal bottom wall 4121 in the second direction and protruding from the pedestal front wall 4123. A fixing groove 4121a for fixing the heating element fixing lid 414 is provided at one end of the base bottom wall 4121 that is away from the base rear side wall, and a fixing locking device 4126 for fixing the heating element fixing lid 414 is provided at the sides of the base left side wall 4124 and the base right side wall 4125 that are away from the base rear side wall.

The heating element fixing cover 414 has a position restricting protrusion 4141 protruding from one end in the axial direction and both sides in the first direction. When the heating element fixing cover 414 is coupled to the heating element base 412, the position restricting protrusion 4141 at one axial end of the heating element fixing cover 414 is inserted into the fixing groove 4121a of the base bottom wall 4121, while the position restricting protrusions 4141 on both sides in the first direction are engaged with the fixing fasteners 4126 on the base left side wall 4124 and the base right side wall 4125.

As shown in FIG. 6, the sheet-shaped heating element 43 has a rectangular sheet-shaped structure and may have a thickness of 0.03 mm to 0.15 mm. A communication groove 4123a is provided through the front side wall 4123 of the base, and the sheet-shaped heating element 43 is fitted into the side of the front side wall 4123 of the base facing the heating element fixing lid 414 to correspond to the communication groove 4123a, and the thickness direction of the sheet-shaped heating element 43 extends in the second direction. As a result, a gas flow passage 47 is formed between the rear side wall of the base and the sheet-shaped heating element 43, and a liquid guide chamber is formed between the sheet-shaped heating element 43 and the heating element fixing lid 414, and the gas flow passage 47 and the liquid guide chamber are located on opposite sides in the thickness direction of the sheet-shaped heating element 43, respectively, and the size of the heating module 40 is effectively compressed in the second direction.

Furthermore, the sheet-shaped heating element 43 is provided with a plurality of heating element exhaust holes 432, each of which is connected to the liquid guide chamber and the gas flow passage 47. In this manner, the aerosol generated by heating the aerosol-generating substrate with the sheet-shaped heating element 43 can flow into the gas flow passage 47 via the heating element exhaust holes 432 and flow out of the heating module 40 together with the gas flow in the gas flow passage 47.

As shown in FIG. 7, the liquid guide member 45 has an elongated structure, one end of which is disposed in the liquid guide chamber and sandwiched between the sheet-shaped heating element 43 and the heating element fixing lid 414, and the other end of which protrudes from one side of the base top wall 4122 to the outside of the liquid guide chamber, and is bent and extended away from the gas flow passage 47 to enter the liquid storage chamber 16. The liquid guide member 45 is formed of a porous material such as liquid guide cotton, and is therefore capable of absorbing the aerosol-generating substrate in the liquid storage chamber 16 and guiding it to the surface of the sheet-shaped heating element 43.

Referring to FIG. 8, preferably, a plurality of flow path guide grooves 4143 are provided at intervals in the first direction on the side of the heating element fixing cover 414 facing the liquid guide chamber, and each flow path guide groove 4143 extends in the axial direction to form a capillary phenomenon, improving the liquid guide effect.

9, in some embodiments, the atomizing assembly 100 further includes a gas flow passage seal member 50 having a hollow block-like structure, the gas flow passage seal member 50 is coupled to the end surface where the large end 20a and the small end 20b of the storage tank bottom cover 20 are connected, the central tube 12 of the storage tank housing 10 and the heating element base 412 of the heating module 40 are inserted into the opposite ends of the gas flow passage seal member 50, respectively, and the gas flow passage seal member 50 is provided with a seal member communication hole 52 that communicates the exhaust passage 121 of the central tube 12 with the gas flow passage 47 of the heating module 40. In this way, the exhaust passage 121 and the gas flow passage 47 are sealed by the gas passage seal member 50 to ensure the airtightness of the entire gas flow passage and prevent the outflow of the gas flow while preventing the leakage of the aerosol-generating substrate in the liquid storage chamber 16.

In addition, a seal member communication groove 54 that connects the liquid guide chamber and the liquid storage chamber 16 is provided on one side of the gas passage seal member 50 in the second direction, so that one end of the liquid guide member 45 can extend into the liquid storage chamber 16 through this seal member communication groove 54.

2 and 3 again, in some embodiments, in order to realize communication between the gas flow passage 47 and the outside air, a bottom cover air intake hole 23 is provided in the bottom cover bottom wall of the liquid storage tank bottom cover 20, a support edge 4121c extending circumferentially is provided on the base bottom wall 4121 of the heating element base 412, the support edge 4121c abuts against the bottom cover bottom wall and can surround the bottom cover air intake hole 23, the base bottom wall 4121 is further provided with a case air intake hole 4121b, the case air intake hole 4121b is positioned inside the support edge 4121c and communicates with the gas flow passage 47, and a case exhaust hole 4122a communicating with the gas flow passage 47 is provided in the base top wall 4122 of the heating element base 412. In this way, gas flow outside the storage tank bottom lid 20 can flow through the bottom lid intake hole 23 into the case intake hole 4121b, enter the gas flow passage 47, and then flow out through the case exhaust hole 4122a.

The atomizing assembly 100 further includes a bottom gasket 60, which is a sheet-like structure with a groove in the center that abuts between the support edge 4121c protruding from the base bottom wall 4121 and the bottom wall of the bottom lid of the liquid storage tank bottom lid 20. The bottom gasket 60 functions as a seal while allowing communication between the base intake hole and the case intake hole 4121b, and can prevent the aerosol-generating substrate in the liquid storage chamber 16 from entering the case intake hole 4121b and the bottom lid intake hole 23.

With continued reference to Figures 2 and 3, in some embodiments, the nebulizer assembly 100 further includes an induction coil 70, a coil mounting case 82, a coil mounting base 84, and a main case 90.

The induction coil 70 is arranged circumferentially surrounding the small end 20b of the storage tank bottom lid 20 that protrudes from the storage tank housing 10, and when an alternating current is supplied, the induction coil 70 generates an alternating magnetic field, which induces the sheet-shaped heating element 43 to generate heat and heat the atomized aerosol generating substrate.

The coil mounting case 82 has a cylindrical structure with one open end, and is fitted to the outside of the induction coil 70 and connected to the heating element fixing lid 414, thereby fixing and protecting the induction coil 70. The coil mounting base 84 is connected to the end of the coil mounting case 82 away from the heating element fixing lid 414, and is used for connecting to the power supply assembly. The main case 90 has a cylindrical structure with one open end, and is fitted to the outside of one end of the storage tank housing 10, and is used to house the coil mounting case 82 and the coil mounting base 84.

The heating module 40, atomization assembly 100, and electronic atomizer utilize the principle of electromagnetic induction to heat and atomize the aerosol-generating substrate using the sheet-shaped heating element 43, and have a higher atomization efficiency than tubular heating elements. In addition, the gas flow passage 47 and the liquid guide member 45 are arranged on both sides of the heating element in the thickness direction, and the liquid guide member 45 allows liquid to enter from the top of the side without providing a liquid inlet passage between the liquid guide member 45 and the induction coil 70, so the distance between the heating element and the induction coil 70 is significantly reduced, and the atomization efficiency is further improved.

The technical features of the above-described embodiments may be combined in any manner, and for the sake of brevity, not all possible combinations of the technical features of the above-described embodiments are described, but as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

The above examples merely illustrate some embodiments of the present application so that the technical proposal of the present application can be specifically and in detail understood, and should not be understood as limiting the scope of the present invention. Please note that many modifications and improvements are possible for those skilled in the art without departing from the idea of the present application, and these are included in the scope of protection of the present application. Therefore, the scope of protection of the patent of the present application shall be defined by the appended claims.

100 atomizing assembly; 10 storage tank housing; 12 central tube; 121 exhaust passage; 14 housing side wall; 16 storage chamber; 20 storage tank bottom lid; 20a large end; 20b small end; 21 bottom lid receiving chamber; 23 bottom lid intake hole; 30 storage tank seal member; 40 heating module; 41 heating case; 412 heating element base; 4121 base bottom wall; 4121a fixing groove; 4121b case intake hole; 4121c support edge; 4122 base top wall; 4122a case exhaust hole; 4123 base front side wall; 4123a communication groove; 4124 base left side wall; 4125 base right side wall; 4126 fixing fastener; 414 heating element fixing lid; 4141 Position control protrusion; 4143 Flow path guide groove; 43 Sheet-shaped heating element; 432 Heating element exhaust hole; 45 Liquid guide member; 47 Gas flow path; 50 Gas flow path seal member; 52 Seal member communication hole; 54 Seal member communication groove; 60 Bottom packing; 70 Induction coil; 82 Coil mounting case; 84 Coil mounting base; 90 Main case

Claims (8)

An atomization assembly comprising: a heat generating module ; a reservoir housing; a reservoir bottom cover; and an induction coil;
The heat generating module includes:
a heat generating case in which a case receiving chamber is formed;
a sheet-shaped heating element that is accommodated in the case accommodation chamber and divides the case accommodation chamber into a liquid guide chamber and a gas flow passage, the liquid guide chamber and the gas flow passage being respectively disposed on both sides of the sheet-shaped heating element in a thickness direction ;
A liquid guide member ,
an exhaust passage and a liquid storage chamber surrounding the exhaust passage are formed in the storage tank housing; the heat generating module is coupled to one end of the storage tank housing, the exhaust passage and the gas flow passage are connected to each other, and the liquid guide chamber and the liquid storage chamber are connected to each other; one end of the liquid guide member is accommodated in the liquid guide chamber and contacts the sheet-like heat generating element, and the other end of the liquid guide member projects from the liquid guide chamber in the extension direction of the exhaust passage, is bent, and extends into the liquid storage chamber;
The liquid storage tank bottom cover is coupled to one end of the liquid storage tank housing, and the heat generating module is accommodated in the liquid storage tank bottom cover;
The induction coil circumferentially surrounds the exterior of the bottom lid of the liquid storage tank.
13. An atomization assembly comprising: The heat generating case includes a heat generating element base and a heat generating element fixing cover,
the heat generating element fixing cover is disposed on a side of the liquid guide member away from the sheet-shaped heat generating element and is coupled to the heat generating element base,
The gas flow passage is formed between the heating element base and the sheet-shaped heating element,
The atomizing assembly according to claim 1 , wherein the liquid guide chamber is formed between the heating element fixing cover and the sheet-like heating element. The atomizing assembly according to claim 2 , wherein a flow path guide groove is provided on a side of the heating element fixing cover facing the liquid guide chamber. 2. The atomizing assembly according to claim 1, wherein the sheet-shaped heating element is provided with a heating element exhaust hole that communicates between the liquid guide chamber and the gas flow passage. Further comprising a gas passage seal member,
2. The atomizing assembly of claim 1 , wherein the gas passage seal is coupled between the reservoir housing and the heat generating module, communicating the exhaust passage with the gas flow passage of the heat generating module. Further comprising a liquid storage tank seal member,
2. The atomizing assembly of claim 1 , wherein the reservoir seal member is disposed between the reservoir bottom cover and the reservoir housing to seal the reservoir chamber. A case intake hole is provided at one end of the heat generating case away from the liquid storage chamber,
The atomizing assembly according to claim 1 , wherein the bottom cover of the storage tank is provided at one end thereof remote from the storage chamber with a bottom cover air inlet communicating with the case air inlet. An atomization assembly according to any one of claims 1 to 7 ,
The electronic atomization device further comprises a power supply assembly electrically connected to the atomization assembly for providing electrical energy to the atomization assembly.